Linear motor and compressor with same

Abstract

The invention provides a linear motor and a compressor with the same. The linear motor comprises a stator and a rotor reciprocating under action of the stator. The stator comprises a stator iron core and winding portions, wherein the stator iron core comprises an iron core body and two toothed portions extending outwards from the iron core body. The iron core body and the two toothed portions are configured to enable the stator iron core to be C-shaped, and the winding portions are respectively wound on the toothed portions. The compressor comprises the linear motor. The stator iron core of the linear motor is C-shaped and comprises the two toothed portions, and the winding portions are wound on the two toothed portions respectively and powered on so as to act with the rotor and drive the rotor to reciprocate. The processing technology of the linear motor is simplified by the two toothed portions, structural processing accuracy is increased, control difficulty of the windings wound on the toothed portions respectively is reduced and accordingly, and running reliability of the linear motor is guaranteed.

Description

technical field [0001] The invention relates to the field of electric motors, more specifically, to a linear electric motor and a compressor having the same. Background technique [0002] A linear motor generally consists of a stator and a mover, and the mover moves linearly under the drive of the stator. [0003] Linear motors can directly generate linear motion. Therefore, in some occasions that require linear motion driven by motors, linear motors can simplify the transmission mechanism and reduce its weight, and greatly reduce energy loss during the transmission process and save space. It is generally used in transportation machinery and elevators. [0004] An existing linear motor uses a bar-shaped iron core to wind the windings, each iron core unit forms more than three teeth, and the windings are energized to generate NSN three-poles. However, it is more difficult to process an iron core unit with more than three teeth, and the arrangement of more than three teeth p...

AI Technical Summary

Problems solved by technology

However, it is more difficult to process the iron core unit with more than three teeth, and the arrangement of more than three teeth has higher requirements for the control of the windings wound on the teeth respectively.

In addition, the magnet of this kind of linear motor adopts a magnetic ring structure, but the magnetic ring cannot be fully utilized, and the magnetic ring structure determines that the motor travel is limited and the reluctance is relatively long.

[0005] The iron core stacking method of another existing linear motor is radial stacking, and the iron core needs to be fixed by welding, the size is difficult to guarantee, and the reliability of the motor operation is not high

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